[vsnet-unknown 9] Re: [vsnet-rcb 84] Re: LO Cep nature? ...etc

[Taichi Kato <tkato>]

Re: [vsnet-rcb 84] Re: LO Cep nature? ...etc

> LO Cep: I observed the spectrum of this star and classed as A0-A5 with 
>         the hydrogen lines, i.e obviously non RCB-star. (Astron.Tsirkular, 
>         No 991, 1, 1978). 
> CT Vul: I and Dr.Platais (Baldone/Riga, Latvia) confirmed the Meinunger' 
>         conclusion that it is non RCB-star. We concluded this from 
>         our objective prism spectrum with the Balmer lines. 
>         (Investigations of the Sun and red stars, No 11, 27, 1980; 
>          Riga, Latvia) 

   Thanks for your information.  I originally referred to these references
to invoke a new query on its nature.  If these stars are of normal A-star
like objects, then what would be the cause of 'fading' resembling those
of RCB stars?  These stars don't seem to be striking in other wavelengths
(IRAS, ROSAT, 2MASS).  Could someone tell us the nature of "IA" type
variables?

Regards,
Taichi Kato

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